How Gear Score works
Incursions introduced Gear Sets, which give the player unique talents. But it’s important to remember that these Gear Set armour necessarily have the highest Gear Score. Wearing a particular item my cause your Gear Score to drop.
Gear Score doesn’t directly affect the amount of damage you do. Gear Score allows you to access certain missions to be released at a later date, the Incursion Falcon Lost, and it decides the Dark Zone instance that you’ll enter when you go into the PvP area.
The next free Incursion – Broken Circle – will require a Gear Score of 220. So there’s reason enough to get your numbers up.